Research progress of photocatalytic hydrogen production system for renewable photovoltaic / photothermal coupling power generation

Due to the influence of external environment and the limitations of Photovoltaic / thermal (PV/T) technology, the utilization efficiency of solar energy is low. How to convert the solar radiation dissipated in the process of photovoltaic power generation into electric energy and further improve the efficiency of solar photoelectric conversion is an important technical problem of solar energy utilization. Hydrogen energy has the advantages of renewability and environmental friendliness. Converting the electric energy generated in the PV/T into hydrogen energy can effectively solve the problems of "abandoning light" and "abandoning electricity" in solar power generation. The research concept of PV/T coupling power generation and photolysis hydrogen production mechanism was put forward in this paper, and the research status of PV/T coupling and electrolytic water was summarized, and the development trend of hydrogen energy was put forward in the future.